<!DOCTYPE html>
<html>

<head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.bundle.min.js"></script> </head>

<body>
    <div class="card-group">
        <div class="card">
            <img class="card-img-top" src="..." alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This is a wider card with supporting text below
                    as a natural lead-in to additional content.
                    This content is a little bit longer.</p>
                <p class="card-text">
                    <small class="text-muted">Last updated 3 mins ago</small>
                </p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top" src="..." alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This card has supporting text below as a natural
                    lead-in to additional content.</p>
                <p class="card-text">
                    <small class="text-muted">Last updated 3 mins ago</small>
                </p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top" src="..." alt="Card image cap">
            <div class="card-body">
                <h5 class="card-title">Card title</h5>
                <p class="card-text">This is a wider card with supporting text below
                    as a natural lead-in to additional content.
                    This card has even longer content than the
                    first to show that equal height action.</p>
                <p class="card-text">
                    <small class="text-muted">Last updated 3 mins ago</small>
                </p>
            </div>
        </div>
    </div>
</body>

</html>